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Method for treating organic waste water by catalyzing persulfate by means of microwave-ultraviolet coupling

A technology for persulfate and organic wastewater, which is applied in chemical instruments and methods, special compound water treatment, oxidized water/sewage treatment, etc., to achieve the effects of simple equipment, high degradation efficiency, and improved treatment efficiency

Inactive Publication Date: 2017-02-22
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

but due to . OH has high requirements on the environment and needs to oxidize pollutants under acidic conditions, so its application is greatly affected by local substances (carbonate, bicarbonate, natural organic matter, etc.)

Method used

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  • Method for treating organic waste water by catalyzing persulfate by means of microwave-ultraviolet coupling
  • Method for treating organic waste water by catalyzing persulfate by means of microwave-ultraviolet coupling
  • Method for treating organic waste water by catalyzing persulfate by means of microwave-ultraviolet coupling

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Effect test

Embodiment 1

[0043] Embodiment 1 of the present invention The microwave-ultraviolet coupling catalyzed method for treating organic wastewater with persulfate comprises the following steps:

[0044] Step S01: Prepare organic waste water and sodium persulfate solution containing rhodamine B respectively, and add a certain amount of sodium persulfate solution in the container of organic waste water containing rhodamine B as a reaction system;

[0045] The preparation process of described organic waste water is as follows:

[0046] Accurately weigh 5.000g of rhodamine B and place it in a small beaker, dissolve it with ultrapure water, transfer it to a 1L volumetric flask after the dissolution is complete, add an appropriate amount of ultrapure water, and then place it on a stirrer for stirring until it dissolves evenly Afterwards, dilute with ultrapure water to the scale line, shake well, and configure the concentration to be 5g·L -1 Rhodamine B contaminant stock solution;

[0047] The prepa...

Embodiment 2

[0063] Embodiment 2 of the present invention The microwave-ultraviolet coupling catalyzed method for treating organic wastewater with persulfate comprises the following steps:

[0064] Step S01: Prepare organic wastewater containing pollutants and potassium persulfate solution respectively, and add a certain amount of potassium persulfate solution in the container of organic wastewater containing pollutants as a reaction system;

[0065] The preparation process of the organic waste water and the potassium persulfate solution is similar to that in Example 1, and will not be repeated here.

[0066] Step S02: placing the container containing the reaction system at the bottom of the microwave oven;

[0067] Step S03: placing the ultraviolet lamp tube in the reaction system inside the microwave oven; the ultraviolet light is generated by microwave radiation of the ultraviolet lamp tube.

[0068] Step S04: Turn on the microwave oven and the ultraviolet lamp, and perform microwave c...

Embodiment 3

[0077] Embodiment 3 of the present invention The microwave-ultraviolet coupling catalyzed method for treating organic wastewater with persulfate comprises the following steps:

[0078] Step S01: Prepare organic waste water and ammonium persulfate solution containing reactive brilliant red respectively, and add a certain amount of ammonium persulfate solution in the container of organic waste water containing Rhodamine B as a reaction system;

[0079] The preparation process of the organic waste water and the ammonium persulfate solution is similar to that of Example 1, and will not be repeated here.

[0080] Step S02: placing the container containing the reaction system at the bottom of the microwave oven;

[0081] Step S03: placing the ultraviolet lamp tube in the reaction system inside the microwave oven; the ultraviolet light is generated by microwave radiation of the ultraviolet lamp tube.

[0082] Step S04: Turn on the microwave oven and the ultraviolet lamp, and perform...

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Abstract

The invention provides a method for treating organic waste water by catalyzing persulfate by means of microwave-ultraviolet coupling. The method comprises the following steps: adding the persulfate into the organic waste water, putting the organic waste water containing the persulfate into a container in a microwave generation device, wherein the container is internally provided with an ultraviolet light generation device, turning on the microwave generation device, using microwave to excite the ultraviolet light generation device, and degrading the organic waste water under the action of catalyzing and activating the persulfate by means of microwave and ultraviolet coupling. According to the method, the persulfate is catalyzed and activated by a microwave and ultraviolet coupling method so as to generate sulfate radicals, and an oxidization system based on the sulfate radicals is formed, so that organic pollutants in the waste water are effectively degraded; in the processes of catalysis and activation, metal ions are not dissolved out in the system, so that secondary pollution is avoided; furthermore, the method is higher in degradation efficiency of organic matters in the waste water under the acidic, neutral and alkaline conditions, so that the waste water can be stably treated under the conditions of multiple pH values.

Description

technical field [0001] The invention belongs to the field of wastewater treatment, and in particular relates to a microwave-ultraviolet coupling catalytic persulfate treatment method for organic wastewater. Background technique [0002] At present, my country's industrial wastewater pollution is serious, and the most important is water pollution. Among the more than 500 major rivers in the country, more than 80% have been polluted to varying degrees due to the discharge of industrial wastewater. More than 90% of rivers are polluted, which has a great impact on the social environment and the life and health of residents. Among them, the papermaking and paper products industry accounted for the largest proportion of total emissions, 3.93 billion tons, accounting for about 1 / 5 of the total emissions, followed by chemical raw materials and chemical product manufacturing, textiles, and the production and supply of electric power and heat. Among them, the impact of printing and dy...

Claims

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Application Information

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IPC IPC(8): C02F9/08C02F101/30
CPCC02F9/00C02F1/302C02F1/32C02F1/72C02F2101/30C02F2101/308C02F2305/023
Inventor 李东亚夏东升徐海明袁向娟孙磊曹刚廖伟左诗语
Owner WUHAN TEXTILE UNIV
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